Build

NPM Scripts

After cloning the repo:

`npm run`
`clean`	Delete output directories (`/build`, `/dist`)
`build [dev]`	Make a development build in `/build`
`build watch`	Make a development build in `/build` and watch for changes until ctrl-C
`build prod`	Make a production build in `/dist`
`test [coverage]`	Run all the tests and generate code coverage data in `/coverage` directory
`test snapshot`	Update the test snapshots